CloudMigration: Interpret error code from migration resource item (#94407)

* start on loading the error code

* error code to message mapping

* use resource code type

* use defined error code

* partial updates from comments

* i18nKey gen

* fixed t

* fixed translations

* typing

pkg/services/cloudmigration/api/api.go

@@ -390,6 +390,7 @@ func (cma *CloudMigrationAPI) GetSnapshot(c *contextmodel.ReqContext) response.R
 			RefID:      results[i].RefID,
 			Status:     ItemStatus(results[i].Status),
 			Message:    results[i].Error,
+			ErrorCode:  ItemErrorCode(results[i].ErrorCode),
 			ParentName: results[i].ParentName,
 		}
 	}

pkg/services/cloudmigration/api/dtos.go

@@ -113,8 +113,9 @@ type MigrateDataResponseItemDTO struct {
 	// required:true
 	RefID string `json:"refId"`
 	// required:true
-	Status  ItemStatus `json:"status"`
-	Message string     `json:"message,omitempty"`
+	Status    ItemStatus    `json:"status"`
+	Message   string        `json:"message,omitempty"`
+	ErrorCode ItemErrorCode `json:"errorCode,omitempty"`
 }
 
 // swagger:enum MigrateDataType
@@ -143,6 +144,21 @@ const (
 	ItemStatusUnknown ItemStatus = "UNKNOWN"
 )
 
+// swagger:enum ItemErrorCode
+type ItemErrorCode string
+
+const (
+	ErrDatasourceNameConflict     ItemErrorCode = "DATASOURCE_NAME_CONFLICT"
+	ErrDashboardAlreadyManaged    ItemErrorCode = "DASHBOARD_ALREADY_MANAGED"
+	ErrLibraryElementNameConflict ItemErrorCode = "LIBRARY_ELEMENT_NAME_CONFLICT"
+	ErrUnsupportedDataType        ItemErrorCode = "UNSUPPORTED_DATA_TYPE"
+	ErrResourceConflict           ItemErrorCode = "RESOURCE_CONFLICT"
+	ErrUnexpectedStatus           ItemErrorCode = "UNEXPECTED_STATUS_CODE"
+	ErrInternalServiceError       ItemErrorCode = "INTERNAL_SERVICE_ERROR"
+	ErrOnlyCoreDataSources        ItemErrorCode = "ONLY_CORE_DATA_SOURCES"
+	ErrGeneric                    ItemErrorCode = "GENERIC_ERROR"
+)
+
 // swagger:parameters getCloudMigrationRun
 type GetMigrationRunParams struct {
 	// RunUID of a migration run